Other Sellers on Amazon
+ $3.07 shipping
+ Free Shipping
+ $8.95 shipping
Donegan LP 2 Replacement Lens for Opti-Visor, 1.5x Magnification, 2 Diopers, 20" Focal Length
|Price:||$23.33 & FREE Shipping on orders over $49. Details|
- Enter your model number to make sure this fits.
- Replacement lens plate for OptiVISOR magnifier which provides hands-free magnification and viewing for a variety of applications such as jewelry-making, watch-making, needlework, artwork, electronic inspection, book-reading, print inspection, and stamp-collecting
- Available in multiple dioptric strengths that provide a specific magnification power (X), depending on the distance from the object (focal length)
- A dioptric number and a magnification number are not the same thing. Diopter strength represents a specific magnification power (X). For example, a 5-diopter provides 2.5X magnification (at a distance of 8")
- Optical-grade, acrylic lens plate ground and polished into a prismatic lens for quality, clarity, and durability
- High-strength, durable plastic lens plate offers simple fit in OptiVISOR magnifier visor
|Item Weight||1.6 ounces|
|Number of Items||1|
|Part Number||LP 2|
|Style Name||1.5 Magnification at 20"|
Specification for this product family
|Brand Name||Donegan Optical|
Frequently Bought Together
Customers Who Bought This Item Also Bought
The Donegan replacement lens plate for the OptiVISOR hands-free, headband binocular magnifier, has an optical-grade, acrylic lens ground and polished into a prismatic lens, and is available in multiple dioptric strengths which provide specific magnification power (X) at specified focal lengths, or distance from object. This magnifier enhances the size and resolution of an object or image, and is commonly used for a variety of applications such as jewelry-making, watch-making, knitting, artwork, electronic inspection, book-reading, print inspection, and stamp-collecting.
(Distance from Object)
The OptiVISOR replacement lens plate is made of a durable plastic material. It is constructed to interchange in and out of the OptiVISOR body with ease. The replacement lens plate comes housed in a protective carrying case, and has a one-year limited warranty.
Diopter (D) is a technical term for the measurement of the light curvature and thickness of a lens. A dioptric number and a magnification number are not the same thing. Diopter strength represents a specific magnification power (X). For example, a 5-diopter provides 2.5X magnification (at a distance of 8”). The higher the diopter, the more magnification a lens can provide. As magnification increases, distance to the object (focal length), and field of view (diameter, or narrowness of view) decrease. Magnifiers and prescription eyeglasses have a diopter value, such as 1.5 or 2. The dioptric strength of an accessory lens, such as prescription eyeglasses or an eye loupe, must be added to the dioptric strength of the magnifier to calculate total magnification.
Magnifiers are devices used to enlarge the visual appearance of an object or image. Magnifiers come in a variety of styles such as hand-held, headband, standing, clip-on, eye loupe, and those that hang in a necklace form, or fit in a trouser pocket. Magnifiers are commonly made of plastic or glass. They can have one or more lenses with varying magnification abilities, and can have a binocular configuration with a single lens, or two separate lenses. They are sometimes used with LED or fluorescent light sources to help control viewing capabilities. Magnifier ability is often expressed as magnification at a specific length. For example, 1.75X at 14” means that when a magnifier is held at 14” from a viewer’s eyes, the object will be magnified 1.75 times (X) its actual size. As magnification increases, viewing areas and focal length decrease. Magnifiers sometimes have a diopter number, expressed as + or - D, which is a measurement of strength (or power) of the lens. Some magnifiers are marked with a dioptric number on the lens. A high diopter number has a higher magnification than a low diopter number. Aspheric magnifiers, unlike spheric magnifiers, produce a sharp image to the edge of the lens for less distortion. Magnifiers are widely used in jewelry inspection and fabrication, watch-making, electronic inspection, needlework, artwork, reading, print inspection, and stamp-collecting.
Donegan Optical manufactures and distributes precision visual devices for hobbyists and professionals in industry, home, office and crafts applications. The company was founded in 1952 and is headquartered in Lenexa, Kansas.
What’s in the Box?
- Replacement lens plate for OptiVISOR magnifier
- Fitted carrying case
- Instruction manual
Size: 2 Diopers
Top Customer Reviews
Optivisor optics are clear and true - I am very pleased with the clarity of their optics - they are true and coma-free all the way to the edge of the field of view.
Also, for my aging eyes they are a great tool for certain types of bench tasks where I need a little aid - whether it is working on electronics, soldering a small joint, inspecting a broken part I am trying to repair... of course there are many uses for a magnifier. And a magnifier that is hands free, one that can be flipped up when not in use, and is comfortable to wear... well, that is why I can recommend the Optivisor (and alternate attachment lenses) to anyone!
Now I am trying to decide if I want another lens to swap out at even higher power for those times I REALLY want to "blow something up".
Thanks for reading!
I normally use reading glasses when working on scale models. But if I use any of the stronger magnification optivisor lenses, I can't use them in conjunction with the reading glasses, the visor becomes too strong and the focal length too short. That means I have to keep switching between glasses and visor. Doesn't work very well. But with these weaker lenses I can keep the reading glasses on and get a reasonable focal length, and can flip them up when I don't need the visor. problem solved!
Most Recent Customer Reviews
Donegan Opivisors are Great! Sturdy & Good Quality. I've had a couple other Brands that were basically junk.
Bought this for more magnification (Also use with the Swing 2. Read more
There seems to be a great deal of confusion about what these lenses are made of. As best as I can tell, a lens plate with blue frame has glass lenses. Read morePublished 12 days ago by Warren T.D.
These stronger ones are a big improvement over the previous lower strength oneI had. You do have to work close to your face but for me it helps me see what I'm doing. Read morePublished 2 months ago by Poopsie Efficient
This review is for the 10x (LP-10) lens only, not the full headband.
I use this lens to help paint tabletop miniatures, which are very hard for my old eyes to see! Read more
These lens are of high quality and give them a five star rating.Published 4 months ago by Steve Preslar